This update removes rarely used activity types from Belgian reporting and product lifecycle management so users see a more focused list of activity options. ECO approval reminders will now use standard to-do activities with clear summaries, reducing clutter without changing the underlying workflow.

This change removes leftover references to an old tax report activity category that had already been discontinued. It helps keep the accounting reports area cleaner and reduces the chance of confusing or unused options appearing in related activity views.

The 'tax_report' mail activity category has been removed by https://github.com/odoo/enterprise/commit/647699eeb4b8a1cc37ca074fa57844871c5086c1

Timesheet-related sales order line fields now show a “Non-billable” placeholder when no billable sales line is selected. This makes it easier for users to quickly recognize non-billable helpdesk work and reduces confusion when reviewing entries.

Added a Non-billable placeholder in the empty sales order line field, making it
easier for users to identify non-billable entries.

task-4123616

Closed project tasks now appear with reduced opacity, making them visually distinct from active tasks. This helps teams scan project views more quickly and focus attention on work that is still open.

In this commit -
 - display closed tasks in a lower opacity than open tasks

Task - 4378629

The Helpdesk and Studio areas were updated to stay aligned with recent changes to the Kanban “Add Column” experience. This mainly keeps automated checks current, helping ensure the redesigned workflow remains reliable for users.

This commit adapts test selectors following changes made in https://github.com/odoo/odoo/pull/204103.

Part of task-4610829

The appraisal screens now use more consistent status colors and better text wrapping so information is easier to read. A low-value skills view was removed to simplify navigation and reduce clutter for users.

- update appraisal list state color to match kanban
- remove kanban view for skill type as it does not add value
- fix the wrap of name field on kanban to not hide behind the kanban ribbon

Task: 4652810